feat(buzbee): BUZBEE command tables now generated with bbmkcmds.c

bbmkcmds.c

@@ -0,0 +1,66 @@
+/* Generates BUZBEE command data table asm file */
+
+#include <stdint.h>
+#include <stdio.h>
+
+/* Length of commands in printable-char count (excluding NUL terminator). */
+const int s_cchCmd = 4;
+
+/* Add your commands here to be hashed. Imprtant that they all be CCH_CMD
+ * chars long EXCLUDING the NUL terminator. */
+const char *s_ppszCmds[] = {
+	"CALL",
+	"EXEC",
+	"HELP",
+	"PEEK",
+	"POKE",
+	"SREC",
+	/* "BOOT", */
+};
+
+int mkHash(const char pszCmd[]);
+
+int main(void) {
+	/* Emit file header */
+	puts("; CHIBI PC-09 -- BUZBEE -- Command Data\n\
+; Copyright (c) 2025 Gale Faraday\n\
+; Licensed under MIT\n\
+\n\
+; This file generated by bbmkcmds.c\n\
+\n\
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;\n\
+;;\n\
+;; BUZBEE Command Data\n\
+;;\n\
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;\n\
+\n\
+  SECTION BBCMDS\n");
+
+	for (int iCmd = 0; iCmd < sizeof(s_ppszCmds) / sizeof(char *); iCmd++) {
+		const char *pszLabel = s_ppszCmds[iCmd];
+		printf("  EXPORT BBC%s\n", pszLabel);
+	}
+
+	/* Extra newline */
+	printf("\n");
+
+	/* Emit table data */
+	for (int iCmd = 0; iCmd < sizeof(s_ppszCmds) / sizeof(char *); iCmd++) {
+		const char *pszLabel = s_ppszCmds[iCmd];
+		uint8_t uHash = mkHash(s_ppszCmds[iCmd]);
+		printf("BBC%s\n  fcb $%.2X\n", pszLabel, uHash);
+	}
+
+	return 0;
+}
+
+int mkHash(const char pszCmd[]) {
+	uint8_t nhash = 0;
+
+	/* NOTE: Very important that condition is the length of the string MINUS the
+	 * NUL terminator, in this case iChar < 4 */
+	for (int iChar = 0; iChar < s_cchCmd; iChar++)
+		nhash = nhash - pszCmd[iChar];
+
+	return nhash;
+}